1/*-
 2 * Copyright (c) 2013 Andrew Turner <andrew@freebsd.org>
 3 * All rights reserved.
 4 *
 5 * Redistribution and use in source and binary forms, with or without
 6 * modification, are permitted provided that the following conditions
 7 * are met:
 8 * 1. Redistributions of source code must retain the above copyright
 9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef _MACHINE_MACHDEP_H_
28#define	_MACHINE_MACHDEP_H_
29
30#ifdef _KERNEL
31
32struct arm64_bootparams {
33	vm_offset_t	modulep;
34	vm_offset_t	kern_stack;
35	vm_paddr_t	kern_ttbr0;
36	uint64_t	hcr_el2;
37	int		boot_el;	/* EL the kernel booted from */
38	int		pad;
39};
40
41enum arm64_bus {
42	ARM64_BUS_NONE,
43	ARM64_BUS_FDT,
44	ARM64_BUS_ACPI,
45};
46
47extern enum arm64_bus arm64_bus_method;
48
49void dbg_init(void);
50bool has_hyp(void);
51void initarm(struct arm64_bootparams *);
52vm_offset_t parse_boot_param(struct arm64_bootparams *abp);
53#ifdef FDT
54void parse_fdt_bootargs(void);
55#endif
56int memory_mapping_mode(vm_paddr_t pa);
57extern void (*pagezero)(void *);
58
59#ifdef SOCDEV_PA
60/*
61 * The virtual address SOCDEV_PA is mapped at.
62 * Only valid while the early pagetables are valid.
63 */
64extern uintptr_t socdev_va;
65#endif
66
67#endif /* _KERNEL */
68
69#endif /* _MACHINE_MACHDEP_H_ */